Water-gage



(No Model.)

H. G. BROOKS. WATER GAGE.

Patented Deo. 2, 1890.

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UNITED STATES PATENT OFFICE.

IIENRY G` BROOKS, OF BATTLE CREEK, MICHIGAN.

WATER-GAG E.

SPECIFICATION forming part of Letters Patent No. 442,010, dated December2, 1890.

Application filed .Tuly 2, 1890. Serial No. 357,467. (No model.)

To all whom it may concern:

Be it known that I, IIENRY G. BROOKS, a citizen of the United States,residing at Battle Creek, in the county of Calhoun and State ofMichigan, vhave invented a new and useful Improvement in Sight-Glasses,of which the following is a specification.

My invention relates to improvements in sight-glasses which are used toreveal the amount of waterin steam-boilers; and the objects are, first,to provide a device which can he adjusted to the requirements of anylength of transparent tubes; second, to provide means whereby two ormore pieces of tubing can be joined so as to form a substitute for onelong piece, and, third, to improve the seating of such tubes, wherebyadditional security against leakage and entirely preventing the wearingaway of the tubes by the ao tion of the steam and water. I attain theseobjects by the mechanism illustrated in the accompanying drawings, inwhich- Figure l is a front elevation of my sightglass. Fig. 2 is avertical section, and Fig. 3 a horizontal section through .r ai. Figs. Iand 5 are vertical sections of the joining or splice bar B; Fig. 6, avertical section atgj; Fig. 7, a perspective view of my improved gasket;

Fig. 8, a sectional view of my improved seating and gasket combined withthe ordinary'r stuffing-box.

Similar letters refer to several views.

In Fig. l the cocks 71; and 7e are in pipes connecting with the boilerin the usual way.

G is a cylindrical chamber provided with a stul'ng-box (Z at its lowerend,throu gh which a hollow rod Z1 extends nearly to its upper end. Thelower or protruding end of said hollow rod is provided with my improvedseating for the glass tube A, which will be hereinafter more fullydescribed. f

The clamping-bar I, which surrounds the piston, is shown in section inFigs. 2 and 3, in which it' are screws butting against circularfoot-pieces o o, which embrace the hollow rod b. The hand-nut c turns ona threaded extension c of the bar I, and is made to butt against thestuffing-box d. The protectingrods n n serve also to hold thejoining-bar B similar parts in the the glass tubes are, first, the innertube B',

The elements of the seatings of.

(shown in section in Figs. 4, 5, G, and 8,) and, second, the gasket,Fig. 7, and m, in the several views, which is composed of suitableelastic material, tubularin form, being thin at its upper edge andincreasing in thickness toward the flange at its base. Said gasket iscomposed, essentially, of two parts: first, the upper conical portionm", operating as a packing between the inner cone B and the glass tube,and, second, the flange m at its base, which forms a seating for theends of the glass tubes. It will be seen that by this seating the wearcaused by the action of the steam and water is prevented. The ordinarystutiingbox may be used with this seating for additional securityagainst leakage, as shown in Fig. S. The joining or splice bar B, usedonly when two or more sections are employed, as when a tube is broken,(shown in section in Fig. 5,) is provided with the seatings described,asis also the bar H, which may be attached to the cock h', or be made as apart of it.

To set a glass of two sections, put the lower section A in position uponIl and adjust the joining-bar B. In a like manner place the uppersection A in position and bring the hollow piston down upon it, pressingall its joints firmly together. Adjust the clampingbar I so that thehand-nut c abuts against the stuffing-box d, clamp it securely in thisposition to the piston D by means of the screwst' t' abutting againstthe embracing foot-pieces o 0, when by turning the hand-nut c, abuttingagainst the stuffing-box d, the piston is forced still farther down andthe tubes are firmly seated in the elastic material of the gaskets.

I have thus far referred only to sightglasses for steam-boilers, for thereason that some of its parts are especially adapted to such useviz.,that which protects the ends of the glass tubes from the action of thesteam and waterwhile in general it is equally as well adapted to manyforms of lubricat-ors now in use.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is*

l. The cylindrical chamber G, provided with the stuffing-box d, thehollow rod b, and the clamping-bar I, carrying the hand-nut c, incombination with the glass tube of a sightglass, substantall y as andfor the purpose specified.

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2. The cylindrical chamber G,vl1aving the stuffing-box (Lt-lle hollowpiston b, the clampilrbar I, carrying the hand-nut c, au d the joi 11-ng-bar B, in combination with the glass tubes of a sight-glass, allsubstantially as set forth.

The clam ping-bar l, having the set-screws 1', circular foot-pieces o o,threaded extension c', and hand-nut c, in combination with the hollowpistou b, stuffing-box d, chamber (r, and glass tube of a sightglass,substantially as set forth.

4.5Y The seatings having the inner tube B and the gasket m, incombination with the glass tubes of a sight-glass, as described. l 5.The gasket m, having aauged base aud an upper portion Which graduallydecreases 'in outside diameter from the base to the top,

substantially as described.

, HENRY G. BROOKS.

Vtnesses WILLIAM F. NEALE, LORENZO R. PEEBLES.

